About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
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Symposium
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Bridging Scale Gaps in Multiscale Materials Modeling in the Age of Artificial Intelligence
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Presentation Title |
Influence of Surface Structure on Graphene Formation via Thermal Decomposition of Silicon Carbide |
Author(s) |
Michael Paul MacIsaac, Salil Bavdekar, Douglas Spearot, Richard Hennig, Ghatu Subhash |
On-Site Speaker (Planned) |
Michael Paul MacIsaac |
Abstract Scope |
Graphene is a material with promising potential in electronic applications. However, synthesizing graphene involves complex thermo-mechanical processes, limiting its adoption. In recent years, the thermal decomposition of silicon carbide (SiC) has been increasingly explored as a method for graphene growth. The growth behavior of graphene from SiC strongly depends on its surface termination by carbon or silicon. Moreover, our knowledge of graphene growth quality and mechanisms from different surface reconstructions and the associated surface kinetics is limited. Our work aims to unravel the nuances of graphene formation via SiC thermal decomposition from different SiC surface reconstructions at spatial and temporal scales that are too challenging to capture via either experimental or ab initio approaches. We employ an interpretable machine-learned interatomic potential adept at modeling different SiC surface reconstructions, thermal decomposition, and graphene formation. We present our findings and their implications with respect to greater graphene adoption. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Phase Transformations, Machine Learning |